Key facts
- Brand
- EXTECH
- Model
- MO290
- Industry
- Industrial
- Documents
- 4
- Languages
- EN
- Last added
- 2023-10-18
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Extech MO290 Pinless Moisture Meter User's Guide
The Extech MO290 is a pinless moisture meter designed to measure moisture content in wood and other building materials without damaging the surface. It features a patented built-in infrared thermometer for non-contact temperature measurement and includes advanced calculation functions such as Dew Point, Vapor Pressure, and Grains Per Pound (GPP). The device also supports optional remote pin-type probes for deeper penetration readings.
Read onlineEXTECH MO290 specifications
| Pinless Moisture Range | 0 to 99.9 |
|---|---|
| RH Measurement Range | 0 to 10% ± 3%RH, 11 to 90% ± 2.5%RH, 91 to 100% ± 3%RH |
| Air Temperature Range | -20 to 170°F (-29 to 77°C) |
| IR Temp Range | -4 to 31°F, 32°F, 33 to 392 °F, -20 to-1°C, 0°C, 1 to 200°C |
| Pinless Depth | Up to 0.75" (19mm) |
| Operating Temperature | 14 to 122°F (-10 to 50°C) |
| Battery Life | 6-8 weeks (4 hrs/day use) |
| Dimensions | 6.5x2.8x1.5' (165x70x38mm) |
All EXTECH MO290 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How do I zero the pinless moisture sensor?
Hold the meter so that the rear sensor is away from any surface or your hand. If the reading is not near 0.0, press and hold the ZERO button for more than 2 seconds.
What is the field of view ratio for the IR thermometer?
The meter's field of view ratio is 8:1, meaning that if the meter is 8 inches from the target, the diameter of the object under test must be at least 1 inch.
How do I zero the pinless moisture sensor?
Hold the meter so the rear sensor is away from any surface, then press and hold the ZERO button for more than 2 seconds until the ZERO icon appears.
From: Extech MO290 Pinless Moisture/Humidity Meter User's Guide
How long does the auto power off feature last?
The meter enters sleep mode after 30 minutes of inactivity and emits a warning beep 15 seconds before shutting down.
From: Extech MO290 Pinless Moisture/Humidity Meter User's Guide
What is the pinless measurement depth?
The device measures moisture up to a depth of 0.75 inches (19mm) below the surface.
From: Extech MO290 Pinless Moisture Psychrometer + IR Thermometer User Manual
Does this meter include a pin-type probe?
Yes, it comes with a remote Pin-type probe that has a 3ft/0.9m cable length for contact moisture readings.
From: Extech MO290 Pinless Moisture Psychrometer + IR Thermometer User Manual